"Well, listen anyway!" Justin began, back in his classroom for the
first time in years. "You got a set of Legos. Twenty, fifty, a
hundred, it doesn't matter. You make a car out of them for your
grandchild, then take it apart. You have the same number as you've
started. Those Legos represent energy. They can't be created or
destroyed."
"What if the Legos get lost?" Kurt asked.
"Then the energy went somewhere else, but the block is still around
somewhere. They can be moved around all you want, but the Legos
themselves are indestructible."
"OK, that's fairly simple," said the Director.
"Now here's the problem. We have a kind of energy called potential
energy, and specifically I mean gravitational potential energy. All
potential energy is based on position, right?"
"I know where you're going with this," Shenika said. "Gravity pulls on
us all the time, so the higher we are, the more potential energy we
have, right?"
"Basically. So, with this instant movement of yours, it all seems to
work except for one thing..."
"Boy, you really get into your explanations, don't you?" Denny muttered.
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